Smartphones and tablets can be great creative canvases for brand advertisers, and many agencies are helping brands go big on mobile. But it’s hard for agencies and advertisers to experience the full interactivity of mobile rich media -- mobile video and HTML5 ads -- through static images alone. Last night at our annual Creative Sandbox event in New York, we unveiled the new Mobile Ads Showcase App, which lets you experience mobile ads exactly as your users will.

The app lets you explore what best-in-class advertisers are doing with mobile rich media, and learn about all that’s possible with Google Mobile Ads. Additionally, agencies can use the app as their mobile portfolio by coding, testing and uploading their HTML5 ad examples to the MRAID-compliant “My Ads” screen. The app is now available for Android smartphones and tablets through the Google Play Store.

At Google, we're amazed by how the ad industry is using the digital canvas to bring brands and ideas to life. Whether it’s enticing viewers with video, evoking a smile with a mobile phone, or reconfiguring the typical ‘test drive,’ when digital advertising works, it can not only be informative, but emotional and dazzling. That’s why we've created a space where everyone can see this great work, talk about it, and roll around in it like a big happy dog.

Today, we’re launching the Creative Sandbox gallery. It’s a crowdsourced collection of global campaigns that push the boundaries of creativity and technology from across digital platforms -- a place to flash your brilliance, spark new digital ideas, inspire and be inspired. We're asking the creators to share a little detail on how they made the magic happen and the tools they used to do it, exposing us all to new ideas and new ways to improve our own work.

As with any sandbox, looking and playing are required. Vote to push your favorite projects to the top. Tell other creators what you admire. And if you've done something amazing lately, send it in. We'd all love to see it.